it's a 1999 S70 T5 with automatic tranny, and at highway spped when trying to maintain speed, it will tend to buck a little, it feels like a fuel issue (like it's starving itself and then corrects itself)
it happens whether I use the cruise control, or try to maintain speed myself.
car only has about 63K miles on it and has been dealer maintained. Is under warantee until next january, and I'd like to actually get it diagnosed. Does anyone have an idea (vac leak? ETC system?) It has not set a code (yet)
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